Document Ev4QJKnjem2qN2mZpyNRdOpn4

LESSON ONE-MODULE 1 BRAKE SYSTEM DIAGNOSIS AND TESTING Slow or Incomplete Brake Pedal Return Slow or incomplete pedal return occurs when the brake pedal does not return to its fully outward position. Slow or incomplete pedal return can be caused by: Worn brake pedal bushings or linkage. Improper power brake booster operation. Improper master cylinder operation. Slow or Incomplete Brake Pedal Return Diagnosis To determine the cause of slow or incomplete brake pedal return, perform the following tests: Check the brake pedal bushings and linkage. Unbolt the master cylinder from the brake booster. Then, depress the brake pedal and release it.. - If the brake pedal does not return to its original position, replace the power booster. - If the brake pedal now returns to its original position, replace the master cylinder. 22 September, 2005 Brake System Diagnosis and Repair